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        <p>记录一些用shell编写的小脚本，等等。<br><a id="more"></a></p>
<h3 id="用shell脚本，实现多台服务器代码同步更新的东东（rsync）"><a href="#用shell脚本，实现多台服务器代码同步更新的东东（rsync）" class="headerlink" title="用shell脚本，实现多台服务器代码同步更新的东东（rsync）"></a>用shell脚本，实现多台服务器代码同步更新的东东（rsync）</h3><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment"># 同步多台服务器文件代码</span></span><br><span class="line"><span class="meta">#!/bin/bash</span></span><br><span class="line"><span class="keyword">if</span> [ <span class="variable">$1</span> == <span class="string">"f"</span> ]</span><br><span class="line"><span class="keyword">then</span></span><br><span class="line">	rsync -av ./ --exclude-from=<span class="string">'frontend_rsync_exclude.txt'</span> changyuan@172.21.0.86:/home/changyuan/frontend/</span><br><span class="line"><span class="keyword">elif</span> [ <span class="variable">$1</span> == <span class="string">"b"</span> ]</span><br><span class="line"><span class="keyword">then</span></span><br><span class="line">	rsync -av ./ --exclude-from=<span class="string">'backend_rsync_exclude.txt'</span> changyuan@172.21.0.86:/home/changyuan/backend/</span><br><span class="line"><span class="keyword">elif</span> [ <span class="variable">$1</span> == <span class="string">"a"</span> ]</span><br><span class="line"><span class="keyword">then</span></span><br><span class="line">	rsync -av ./ --exclude-from=<span class="string">'api_rsync_exclude.txt'</span> changyuan@172.21.0.86:/home/changyuan/api/</span><br><span class="line"><span class="keyword">else</span></span><br><span class="line">	rsync -av ./ --exclude-from=<span class="string">'frontend_rsync_exclude.txt'</span> changyuan@172.21.0.86:/home/changyuan/frontend/</span><br><span class="line">	rsync -av ./ --exclude-from=<span class="string">'backend_rsync_exclude.txt'</span> changyuan@172.21.0.86:/home/changyuan/backend/</span><br><span class="line">	rsync -av ./ --exclude-from=<span class="string">'api_rsync_exclude.txt'</span> changyuan@172.21.0.86:/home/changyuan/api/</span><br><span class="line"><span class="keyword">fi</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 其中.txt 文件是一些不需要的同步的目录文件</span></span><br></pre></td></tr></table></figure>
<p>rsync 是一个远程数据同步工具，可通过LAN,WAN快速同步多台主机间的文件。Rsync使用所谓的“Rsync算法”来使本地和远程两个主机之间的文件达到同步，这个算法只传送两个文件的不同部分，而不是每次都整份传送，因此速度相当快。<code>rsync --help</code> 查看帮助，其中常使用的参数如下，有两种实现方式：</p>
<blockquote>
<ul>
<li>-a, –archive 归档模式，表示以递归方式传输文件，并保持所有文件属性，等于-rlptgoD</li>
<li>-v, –verbose 详细模式输出</li>
<li>-P 等同于 –partial</li>
<li>–progress 显示备份过程</li>
<li>-z, –compress 对备份的文件在传输时进行压缩处理</li>
<li>–exclude=PATTERN 指定排除不需要传输的文件模式</li>
<li>–include=PATTERN 指定不排除而需要传输的文件模式</li>
<li>–exclude-from=FILE 排除FILE中指定模式的文件，在一个文件中指定的目录或文件</li>
<li>–include-from=FILE 不排除FILE指定模式匹配的文件 必须包含的,在一个文件中指定的目录或文件</li>
<li>–delete 删除那些DST中SRC没有的文件</li>
<li>–delete-excluded 同样删除接收端那些被该选项指定排除的文件</li>
<li>–delete-after 传输结束以后再删除</li>
</ul>
</blockquote>
<h4 id="SSH方式"><a href="#SSH方式" class="headerlink" title="SSH方式(:)"></a>SSH方式(:)</h4><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">service sshd start</span><br><span class="line">rsync -vzrtopg --progress -e ssh --delete work@172.16.78.192:/www/* /databack/experiment/rsync</span><br><span class="line"></span><br><span class="line"><span class="comment">#如何通过rsync只复制目录结构，忽略掉文件呢?</span></span><br><span class="line">rsync -av --include <span class="string">'*/'</span> --exclude <span class="string">'*'</span> <span class="built_in">source</span>-dir dest-dir</span><br></pre></td></tr></table></figure>
<h4 id="后台服务方式"><a href="#后台服务方式" class="headerlink" title="后台服务方式(::)"></a>后台服务方式(::)</h4><h5 id="启动rsync服务"><a href="#启动rsync服务" class="headerlink" title="启动rsync服务"></a>启动rsync服务</h5><p><code>vim /etc/xinetd.d/rsync</code> , 将其中的<code>disable=yes</code>改为<code>disable=no</code>,并重启<code>xinetd</code>服务</p>
<h5 id="创建配置文件"><a href="#创建配置文件" class="headerlink" title="创建配置文件"></a>创建配置文件</h5><p><code>vi /etc/rsyncd.conf</code><br><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line">uid=root</span><br><span class="line">gid=root</span><br><span class="line">max connections=4</span><br><span class="line"><span class="built_in">log</span> file=/var/<span class="built_in">log</span>/rsyncd.log</span><br><span class="line">pid file=/var/run/rsyncd.pid</span><br><span class="line">lock file=/var/run/rsyncd.lock</span><br><span class="line">secrets file=/etc/rsyncd.passwd</span><br><span class="line">hosts deny=172.16.78.0/22</span><br><span class="line"></span><br><span class="line">[www]</span><br><span class="line">comment= backup web</span><br><span class="line">path=/www</span><br><span class="line"><span class="built_in">read</span> only = no</span><br><span class="line">exclude=<span class="built_in">test</span></span><br><span class="line">auth users=work</span><br></pre></td></tr></table></figure></p>
<h5 id="创建密码文件"><a href="#创建密码文件" class="headerlink" title="创建密码文件"></a>创建密码文件</h5><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">echo</span> <span class="string">"work:abc123"</span> &gt; /etc/rsyncd.passwd</span><br><span class="line">chmod 600 /etc/rsyncd.passwd</span><br></pre></td></tr></table></figure>
<h5 id="备份-恢复"><a href="#备份-恢复" class="headerlink" title="备份,恢复"></a>备份,恢复</h5><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">rsync -avz --progress --delete work@172.16.78.192::www /databack/experiment/rsync</span><br><span class="line">rsync -avz --progress /databack/experiment/rsync/ work@172.16.78.192::www</span><br></pre></td></tr></table></figure>
<p><a href="https://rsync.samba.org/" target="_blank" rel="noopener">更多关于rsync参考</a> , <a href="https://rsync.samba.org/examples.html" target="_blank" rel="noopener">官方给出的样例</a></p>
<h3 id="crontab-相关参数"><a href="#crontab-相关参数" class="headerlink" title="crontab 相关参数"></a>crontab 相关参数</h3><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line"> .---------------- minute (0 - 59)</span><br><span class="line"> |  .------------- hour (0 - 23)</span><br><span class="line"> |  |  .---------- day of month (1 - 31)</span><br><span class="line"> |  |  |  .------- month (1 - 12) OR jan,feb,mar,apr ...</span><br><span class="line"> |  |  |  |  .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat</span><br><span class="line"> |  |  |  |  |</span><br><span class="line"> *  *  *  *  * user-name <span class="built_in">command</span> to be executed</span><br><span class="line"></span><br><span class="line">eg：</span><br><span class="line">0 3 * * * bash /home/demo.sh &gt;&gt; /home/sh.log  <span class="comment"># 三点开始执行</span></span><br><span class="line">8 12 * * 3 bash /data1/auto.sh  <span class="comment"># 每周3的12点8分开始执行</span></span><br><span class="line">0 21 * * 2 scp /data1/&#123;kid_kid_ask_set,kid_period_ask_set&#125; root@192.168.2.3:/data/ <span class="comment">#每周二晚上21点执行</span></span><br><span class="line">10 14 * * * bash /home/updataRedis.sh &gt;&gt;/home/<span class="built_in">log</span>/log.txt 2&gt;&amp;1 <span class="comment"># 14:10 开始</span></span><br><span class="line">*/1 * * * * curl http://www.xxx.com/test.php  <span class="comment">#每分钟开始执行</span></span><br></pre></td></tr></table></figure>
<h3 id="创建文件夹"><a href="#创建文件夹" class="headerlink" title="创建文件夹"></a>创建文件夹</h3><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#!/bin/bash </span></span><br><span class="line"><span class="built_in">cd</span> /home/changyuan/<span class="built_in">test</span>/</span><br><span class="line">str=`date <span class="string">'+%Y%m%d%H%M'</span>`</span><br><span class="line"></span><br><span class="line"><span class="keyword">if</span> [ -d <span class="variable">$str</span> ] </span><br><span class="line"><span class="keyword">then</span></span><br><span class="line">	<span class="built_in">echo</span> <span class="string">"exist floder"</span></span><br><span class="line"><span class="keyword">else</span></span><br><span class="line">	mkdir <span class="variable">$str</span></span><br><span class="line"><span class="keyword">fi</span></span><br></pre></td></tr></table></figure>
<h3 id="shell-基础"><a href="#shell-基础" class="headerlink" title="shell 基础"></a>shell 基础</h3><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span 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class="line">149</span><br><span class="line">150</span><br><span class="line">151</span><br><span class="line">152</span><br><span class="line">153</span><br><span class="line">154</span><br></pre></td><td class="code"><pre><span class="line">touch online.sh</span><br><span class="line"></span><br><span class="line"><span class="meta">#!/bin/bash</span></span><br><span class="line"><span class="built_in">echo</span> <span class="string">"Hello World !"</span></span><br><span class="line"></span><br><span class="line"><span class="comment">#变成可执行文件</span></span><br><span class="line">chmod +x ./online.sh</span><br><span class="line"></span><br><span class="line"><span class="comment">#或者直接</span></span><br><span class="line">/bin/sh online.sh</span><br><span class="line"></span><br><span class="line"><span class="comment">#变量使用</span></span><br><span class="line"><span class="keyword">for</span> file <span class="keyword">in</span> `ls /etc`</span><br><span class="line"></span><br><span class="line">your_name=<span class="string">"qinjx"</span></span><br><span class="line"><span class="built_in">echo</span> <span class="variable">$your_name</span></span><br><span class="line"><span class="built_in">echo</span> <span class="variable">$&#123;your_name&#125;</span></span><br><span class="line"></span><br><span class="line"><span class="comment">#只读变量</span></span><br><span class="line">myUrl=<span class="string">"http://www.w3cschool.cc"</span></span><br><span class="line"><span class="built_in">readonly</span> myUrl</span><br><span class="line"></span><br><span class="line"><span class="comment">#删除变量</span></span><br><span class="line"><span class="built_in">unset</span> variable_name</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment">#字符串</span></span><br><span class="line"><span class="built_in">echo</span> <span class="string">"\"It is a test\""</span> <span class="comment"># 转义</span></span><br><span class="line"><span class="built_in">echo</span> -e <span class="string">"OK! \n"</span> <span class="comment"># 转义换行</span></span><br><span class="line"><span class="built_in">echo</span> <span class="string">'$name'</span>  <span class="comment"># 单引号为输出</span></span><br><span class="line">string=<span class="string">"runoob is a great site"</span></span><br><span class="line"><span class="built_in">echo</span> <span class="variable">$&#123;#string&#125;</span> <span class="comment">#提取子字符串长度</span></span><br><span class="line"><span class="built_in">echo</span> <span class="variable">$&#123;string:1:4&#125;</span> <span class="comment"># 输出 unoo</span></span><br><span class="line"></span><br><span class="line"><span class="built_in">echo</span> <span class="variable">$string</span> <span class="variable">$string1</span> <span class="comment">#连接字符串</span></span><br><span class="line"></span><br><span class="line"><span class="built_in">echo</span> `expr index <span class="string">"<span class="variable">$string</span>"</span> is` <span class="comment"># 查找is位置expr</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment">#数组</span></span><br><span class="line">array_name=(value0 value1 value2 value3) <span class="comment">#定义</span></span><br><span class="line">array_name[n]=valuen</span><br><span class="line"></span><br><span class="line"><span class="variable">$&#123;array_name[1]&#125;</span> <span class="comment">#取值</span></span><br><span class="line"><span class="variable">$&#123;array_name[@]&#125;</span> , <span class="variable">$&#123;array_name[*]&#125;</span>  <span class="comment">#全部</span></span><br><span class="line"></span><br><span class="line"><span class="variable">$&#123;#array_name[0]&#125;</span> <span class="comment">#单个长度</span></span><br><span class="line"><span class="variable">$&#123;#array_name[@]&#125;</span> 或者 <span class="variable">$&#123;#array_name[*]&#125;</span> <span class="comment">#长度</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 参数传递</span></span><br><span class="line"><span class="variable">$0</span>,<span class="variable">$1</span>,<span class="variable">$2</span>... <span class="comment"># 分别为第一个，第二个参数等等</span></span><br><span class="line"><span class="variable">$#</span>	 <span class="comment">#为传递到脚本的参数个数</span></span><br><span class="line">$* , <span class="variable">$@</span>   <span class="comment">#所有向脚本传递的参数,只有放到双引号中，前者相当于一个参数"1 2 3"，后台还是多个(1,2,3)</span></span><br><span class="line">$$  <span class="comment">#脚本运行的当前进程ID号</span></span><br><span class="line">$!  <span class="comment">#后台运行的最后一个进程的ID号</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 运算符 放到 `` 符号中</span></span><br><span class="line">val=`expr 2 + 2`</span><br><span class="line"></span><br><span class="line"><span class="comment"># 布尔运算符  ! 非 -o 或运算(or) -a 与运算(and)</span></span><br><span class="line"><span class="comment"># 逻辑运算符 &amp;&amp; || </span></span><br><span class="line"><span class="comment"># 字符串运算符</span></span><br><span class="line">=:   <span class="comment">#两个字符串是否相等</span></span><br><span class="line">!=:  <span class="comment">#两个字符串是否相等</span></span><br><span class="line">-z:  <span class="comment">#字符串长度是否为0，为0返回 true(zero) [ -z $a ]</span></span><br><span class="line">-n:  <span class="comment">#字符串长度是否为0，不为0返回 true(no zero) </span></span><br><span class="line">str: <span class="comment">#[ $a ]</span></span><br><span class="line"></span><br><span class="line"><span class="comment">#文件测试运算符</span></span><br><span class="line">-b,-c,-d,-f,-g,-k,-p,-u,-r,-w,-x,-s,-e</span><br><span class="line"><span class="comment">#其中-c：是字符设备文件，-d目录，-f文件，-r只读，-w可写，-x可执行，-s文件大小是否&gt;0,不为空返回true，-e（exist）文件是否存在</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># 屏幕读取变量</span></span><br><span class="line"><span class="built_in">read</span> name</span><br><span class="line"><span class="built_in">echo</span> <span class="string">"<span class="variable">$name</span> It is a test"</span></span><br><span class="line"></span><br><span class="line"><span class="built_in">printf</span> <span class="comment"># 格式化输出</span></span><br><span class="line"></span><br><span class="line"><span class="comment">#test 检查某个条件是否成立</span></span><br><span class="line"><span class="comment"># 流程控制</span></span><br><span class="line"><span class="keyword">if</span> <span class="built_in">test</span> $[num1] -eq $[num2]</span><br><span class="line"><span class="keyword">then</span></span><br><span class="line">    <span class="built_in">echo</span> <span class="string">'两个数相等！'</span></span><br><span class="line"><span class="keyword">else</span></span><br><span class="line">    <span class="built_in">echo</span> <span class="string">'两个数不相等！'</span></span><br><span class="line"><span class="keyword">fi</span></span><br><span class="line"></span><br><span class="line"><span class="keyword">if</span> condition1</span><br><span class="line"><span class="keyword">then</span></span><br><span class="line">    command1</span><br><span class="line"><span class="keyword">elif</span> condition2 </span><br><span class="line"><span class="keyword">then</span> </span><br><span class="line">    command2</span><br><span class="line"><span class="keyword">else</span></span><br><span class="line">    commandN</span><br><span class="line"><span class="keyword">fi</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="keyword">for</span> var <span class="keyword">in</span> item1 item2 ... itemN</span><br><span class="line"><span class="keyword">do</span></span><br><span class="line">    command1</span><br><span class="line">    command2</span><br><span class="line">    ...</span><br><span class="line"><span class="keyword">done</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="meta">#!/bin/sh</span></span><br><span class="line">int=1</span><br><span class="line"><span class="keyword">while</span>(( <span class="variable">$int</span>&lt;=5 ))</span><br><span class="line"><span class="keyword">do</span></span><br><span class="line">        <span class="built_in">echo</span> <span class="variable">$int</span></span><br><span class="line">        <span class="built_in">let</span> <span class="string">"int++"</span></span><br><span class="line"><span class="keyword">done</span></span><br><span class="line"></span><br><span class="line">until condition</span><br><span class="line"><span class="keyword">do</span></span><br><span class="line">    <span class="built_in">command</span></span><br><span class="line"><span class="keyword">done</span></span><br><span class="line"></span><br><span class="line"><span class="keyword">case</span> var <span class="keyword">in</span></span><br><span class="line">	1)</span><br><span class="line">    command1</span><br><span class="line">    ;;</span><br><span class="line">	2）</span><br><span class="line">    command2</span><br><span class="line">    ;;</span><br><span class="line"><span class="keyword">esac</span></span><br><span class="line"></span><br><span class="line"><span class="built_in">break</span></span><br><span class="line"><span class="built_in">continue</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 函数</span></span><br><span class="line">[<span class="keyword">function</span>] <span class="function"><span class="title">demoFun</span></span>()&#123;</span><br><span class="line">    <span class="built_in">echo</span> <span class="string">"demo"</span></span><br><span class="line">    <span class="built_in">return</span> (<span class="variable">$#</span>,$*); <span class="comment"># 返回所有参数个数和全部参数</span></span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">#Shell 输入/输出重定向</span></span><br><span class="line"></span><br><span class="line">cat test.txt &gt; test1.txt</span><br><span class="line">cat test.txt &gt;&gt; test1.txt</span><br><span class="line"></span><br><span class="line"><span class="comment">#如果希望执行某个命令，但又不希望在屏幕上显示输出结果，那么可以将输出重定向到 /dev/null：</span></span><br><span class="line"><span class="built_in">command</span> &gt; /dev/null <span class="comment">#会起到"禁止输出"的效果</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 如果希望屏蔽 stdout 和 stderr,0 是标准输入（STDIN）,1 是标准输出（STDOUT）,2 是标准错误输出（STDERR）</span></span><br><span class="line"><span class="built_in">command</span> &gt; /dev/null 2&gt;&amp;1  </span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># 文件包含</span></span><br><span class="line">. ./test1.sh 或者</span><br><span class="line"><span class="built_in">source</span> ./test1.sh</span><br></pre></td></tr></table></figure>
      
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              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-3"><a class="nav-link" href="#用shell脚本，实现多台服务器代码同步更新的东东（rsync）"><span class="nav-number">1.</span> <span class="nav-text">用shell脚本，实现多台服务器代码同步更新的东东（rsync）</span></a><ol class="nav-child"><li class="nav-item nav-level-4"><a class="nav-link" href="#SSH方式"><span class="nav-number">1.1.</span> <span class="nav-text">SSH方式(:)</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#后台服务方式"><span class="nav-number">1.2.</span> <span class="nav-text">后台服务方式(::)</span></a><ol class="nav-child"><li class="nav-item nav-level-5"><a class="nav-link" href="#启动rsync服务"><span class="nav-number">1.2.1.</span> <span class="nav-text">启动rsync服务</span></a></li><li class="nav-item nav-level-5"><a class="nav-link" href="#创建配置文件"><span class="nav-number">1.2.2.</span> <span class="nav-text">创建配置文件</span></a></li><li class="nav-item nav-level-5"><a class="nav-link" href="#创建密码文件"><span class="nav-number">1.2.3.</span> <span class="nav-text">创建密码文件</span></a></li><li class="nav-item nav-level-5"><a class="nav-link" href="#备份-恢复"><span class="nav-number">1.2.4.</span> <span class="nav-text">备份,恢复</span></a></li></ol></li></ol></li><li class="nav-item nav-level-3"><a class="nav-link" href="#crontab-相关参数"><span class="nav-number">2.</span> <span class="nav-text">crontab 相关参数</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#创建文件夹"><span class="nav-number">3.</span> <span class="nav-text">创建文件夹</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#shell-基础"><span class="nav-number">4.</span> <span class="nav-text">shell 基础</span></a></li></ol></div>
            

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